Page 128 of 240

GCWR (Gross Combined Weight Rating)/Trailer Weights
EngineRear
axle
ratioMaximum
GCWR - kg
(lbs.)Maximum
Loaded Trailer
Weight - kg
(lbs.)Maximum
frontal area of
trailer - m
2(ft2)
E-450 Stripped Chassis (all wheelbases, all GVWRs)
5.4L 4.56 5897 (13000) 3719 (8200) 5.52 (60)
6.8L 4.56 8391 (18500) 4536 (10000) 5.52 (60)
Maximum trailer weight for all cutaway (E-350 and E-450) vehicles must
be calculated by subtracting the weight of the vehicle (including
incomplete vehicle weight and payload which includes second unit body
weight, cargo and passengers) from the GCW. Otherwise, maximum trailer
weight is 4536 kg (10000 lbs)
For high altitude operation reduce GCWR by 2% per 300 meters (1000 ft)
elevation.
To determine the maximum trailer weight designed for your particular
vehicle as equipped, follow the sectionCalculating the load your vehicle
can tow/carryearlier in this chapter.
Your vehicle’s load capacity is designated by weight, not by volume, so
you cannot necessarily use all available space when loading a vehicle.
Distribute the load so that only 10 to 15% of the total is on the tongue.
Tie down the load so that it does not shift and change the weight on the
hitch.
Towing a trailer places an additional load on your vehicle’s engine,
transmission, axle, brakes, tires and suspension. Inspect these
components carefully after any towing operation.
Note:Do not exceed the GVWR or the GAWR specified on the
certification label.
Towing trailers beyond the maximum recommended gross trailer
weight exceeds the limit of the vehicle and could result in
engine damage, transmission damage, structural damage, loss of vehicle
control, vehicle rollover and personal injury.
Preparing to tow
Use the proper equipment for towing a trailer and make sure it is
properly attached to your vehicle. See your dealer or a reliable trailer
dealer if you require assistance.
Hitches
Do not use or install hitches that clamp onto the bumper or to the axle.
Underbody hitches are acceptable if installed properly.
2004 Econoline(eco)
Owners Guide (post-2002-fmt)
USA English(fus)
Driving
128
Page 194 of 240

ESSENTIALS OF GOOD FUEL ECONOMY
Measuring techniques
Your best source of information about actual fuel economy is you, the
driver. You must gather information as accurately and consistently as
possible. Fuel expense, frequency of fill-ups or fuel gauge readings are
NOT accurate as a measure of fuel economy. We do not recommend
taking fuel economy measurements during the first 1,600 km (1,000
miles) of driving (engine break-in period). You will get a more accurate
measurement after 3,000 km–5,000 km (2,000 miles-3,000 miles).
Filling the tank
The advertised fuel capacity of the fuel tank on your vehicle is equal to
the rated refill capacity of the fuel tank as listed in theRefill capacities
section of this chapter.
The advertised capacity is the amount of the indicated capacity and the
empty reserve combined. Indicated capacity is the difference in the
amount of fuel in a full tank and a tank when the fuel gauge indicates
empty. Empty reserve is the small amount of fuel remaining in the fuel
tank after the fuel gauge indicates empty.
The amount of usable fuel in the empty reserve varies and should
not be relied upon to increase driving range. When refueling your
vehicle after the fuel gauge indicates empty, you might not be
able to refuel the full amount of the advertised capacity of the
fuel tank due to the empty reserve still present in the tank.
For consistent results when filling the fuel tank:
•Turn the engine/ignition switch to the off position prior to refueling,
an error in the reading will result if the engine is left running.
•Use the same filling rate setting (low—medium—high) each time
the tank is filled.
•Allow no more than 2 automatic click-offs when filling.
•Always use fuel with the recommended octane rating.
•Use a known quality gasoline, preferably a national brand.
•Use the same side of the same pump and have the vehicle facing the
same direction each time you fill up.
•Have the vehicle loading and distribution the same every time.
Your results will be most accurate if your filling method is consistent.
Calculating fuel economy
1. Fill the fuel tank completely and record the initial odometer reading
(in kilometers or miles).
2004 Econoline(eco)
Owners Guide (post-2002-fmt)
USA English(fus)
Maintenance and Specifications
194
Page 237 of 240

K
Keys
positions of the ignition .........108
L
Lamps
bulb replacement
specifications chart ..................53
daytime running light ...............50
headlamps .................................50
headlamps, flash to pass ..........51
instrument panel, dimming .....51
interior lamps ...........................52
replacing bulbs ...................53–57
Lane change indicator
(see Turn signal) ........................52
Lights, warning and indicator ....10
anti-lock brakes (ABS) ..........112
Load limits .................................120
Loading instructions .................123
Lubricant specifications ...222, 225
Lumbar support, seats ...............74
M
Mirrors
fold away ...................................64
side view mirrors (power) .......63
Motorcraft parts ................193, 217
O
Octane rating ............................192
Oil (see Engine oil) ..................175
P
Parking brake ............................112Parts (see Motorcraft parts) ....217
Power distribution box
(see Fuses) ...............................139
Power door locks ........................68
Power point .................................62
Power steering ..........................113
fluid, checking and adding ....199
fluid, refill capacity ................218
fluid, specifications .........222, 225
Power Windows ...........................63
Preparing to drive your
vehicle ........................................113
R
Radio ..........................15, 17, 19, 22
Rear seat entertainment
system ..........................................26
Relays ................................135, 142
Remote entry system
illuminated entry ................50, 72
locking/unlocking doors ...........68
Roadside assistance ..................132
S
Safety Belt Maintenance ............88
Safety belts (see Safety
restraints) ..............................79–83
Safety defects, reporting ..........165
Safety restraints ....................79–83
belt minder ...............................84
extension assembly ..................88
for adults .............................80–82
for children .........................93–94
lap belt ......................................83
safety belt maintenance ...........88
warning light and chime ..........84
2004 Econoline(eco)
Owners Guide (post-2002-fmt)
USA English(fus)
Index
237